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Fix nil pointer dereference panic in Find() if module by prefix is not found #252

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merged 1 commit into from
Oct 26, 2023
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Fix nil pointer dereference panic in Find() if module by prefix is not found #252

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10 changes: 8 additions & 2 deletions pkg/yang/entry.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1322,11 +1322,17 @@ func (e *Entry) Find(name string) *Entry {
e = e.Parent
}
if prefix, _ := getPrefix(parts[0]); prefix != "" {
m := module(FindModuleByPrefix(contextNode, prefix))
if m == nil {
mod := FindModuleByPrefix(contextNode, prefix)
if mod == nil {
e.addError(fmt.Errorf("cannot find module giving prefix %q within context entry %q", prefix, e.Path()))
return nil
}
m := module(mod)
if m == nil {
e.addError(fmt.Errorf("cannot find which module %q belongs to within context entry %q",
mod.NName(), e.Path()))
return nil
}
if m != e.Node.(*Module) {
e = ToEntry(m)
}
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